Optimization of Sensing Receiver for Cognitive Radio Applications
نویسندگان
چکیده
منابع مشابه
Optimization of Sensing Receiver for Cognitive Radio Applications
In this paper, we propose an optimized dedicated broadband sensing receiver architecture for use in cognitive radios supporting delay sensitive applications. Specifically, we first reason the need for a dedicated sensing receiver that employs a combination of coarse and fine scanning to reduce sensing time over a large bandwidth. We derive an expression for mean acquisition/detection time as a ...
متن کاملSensing Optimization for an Receiver Structure in Cognitive Radio Systems
— This paper describes the optimization of spectrum sensing in terms of the throughput of a cognitive radio (CR) system. Dealing with the optimization problem of spectrum sensing, this paper evaluates the throughput of a CR system by considering such situations as the penalty time of a channel search and incumbent user (IU) detection delay caused by a missed detection of an incumbent signal. Al...
متن کاملTheoretical Specification of a Spectrum Sensing Receiver for Cognitive Radio
This paper presents the theoretical specification of Spectrum Sensing Receiver used for Cognitive Radios. Its system level design is intended to comply with IEEE 802.22, IEEE 802.16 (Wimax) and LTE standards altogether. The operation frequency band is very wide, from 50MHz to 3.8GHz. Calculated specifications include noise figure, compression point, third order intercept point, sensitivity and ...
متن کاملSpectrum Sensing for Cognitive Radio Applications
The need for higher data rates is increasing as a result of the transition from voice-only communication to wireless multimedia and web type of applications. Given the limitations of natural frequency spectrum, it becomes obvious that current static frequency allocation schemes cannot accommodate these requirements of increasing number of higher data rate devices. As a result, innovative techni...
متن کاملSensing Optimization in Cooperative Cognitive Radio Networks
Cooperative spectrum sensing is a key function in cognitive radio networks in order to provide unused spectrum access opportunities and mitigate the impact of interference to the primary networks. Cooperative sensing can incur additional cooperation overhead, increased energy consumption, extra sensing time and delay in heterogeneous networks. In this paper, the sensing time period is optimized...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: EURASIP Journal on Advances in Signal Processing
سال: 2009
ISSN: 1687-6180
DOI: 10.1155/2009/309212